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Production. Pratt and Whitney airplane engines. Cylinder barrels for Pratt and Whitney airplane motors must undergo rigid inspection before being installed in the engines. The large plant producing motors is making an important contribution to our growing air power by keeping a steady stream of supe
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Credit lineProduction. Pratt and Whitney airplane engines. Cylinder barrels for Pratt and Whitney airplane motors must undergo rigid inspection before being installed in the engines. The large plant producing mo. 1942-01-01. United States. Office Of War Information, Feininger, Andreas. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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